infamous

adjective

Having an exceedingly bad reputation; notorious: an infamous outlaw.

Causing or deserving severe public condemnation; heinous: “No person shall be held to answer for a capital, or otherwise infamous crime, unless on a presentment or indictment of a Grand Jury”(US Constitution, Amendment 5).

Law Convicted of a crime, such as treason or felony, that carries a severe punishment. No longer in technical use.

(archaic) in England / Great Britain, a judicial punishment which deprived the infamous person of certain rights; this included a prohibition against holding public office, exercising the franchise, receiving a public pension, serving on a jury, or giving testimony in a court of law.